We look at the division of 116253 by 90 
The aim is to understand the frequency of 90 in 116253.

Let's proceed to step 1:
1 divided by 90 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 90

On to step 2:
90 goes into 11 0 times with a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 90

Let's proceed to step 3:
If we divide 116 by 90, we get 1 and a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 26 after subtracting 90 from 116.
Fetch the next digit (2) from the dividend, attach it to 26 and continue: 262 / 90

Going ahead to step 4:
When dividing 262 by 90, we get 2 with a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 180 from 262, we get 82.
Include the next digit (5) from the dividend after 82, then repeat: 825 / 90

Let's proceed to step 5:
90 can be fit into 825 9 times, resulting in a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 129.0
If we take 810 away from 825, we end up with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 90

Advancing to step 6:
When dividing 153 by 90, we get 1 with a remainder of 63.
Write down 1 as next digit of the result. 
Result so far: 1291.0
Subtracting 90 from 153 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 7:
90 can be fit into 630 7 times, resulting in a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 1291.7
If we take 630 away from 630, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 90 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1291.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1291.7
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 1291.7 with a remainder of 0.0.